Spent the weekend getting a 2017 MacBook Pro fully working under Arch/linux-zen

I’ve been working on an Arch-based creator-focused distro project called SelahOS, and this weekend I finally got all major hardware functioning on a MacBookPro14,1.
Working now:
BCM4350 WiFi

CS8409 audio

Thunderbolt 3

suspend/wake

keyboard backlight

FaceTime HD camera

external audio interfaces over TB docks

battery monitoring/fan control

Biggest surprise:
after hours digging through Apple Thunderbolt behavior and ACPI paths, the actual breakthrough ended up being Intel’s thunderbolt kernel module simply not being initialized.
One modprobe thunderbolt later and the dock stack came alive.
The larger goal is trying to make older creator hardware genuinely usable again under Linux instead of discarded.
Still early, but wanted to share because I know other people are fighting similar compatibility battles.